
Tunnel Construction Professionals
Technology Research Institute
Messages from Obayashi engineers on the challenge of tunnel construction with research in individual areas of expertise
Technology Research Institute

Senior Chief Engineer of Numerical Analysis, Geotechnical Engineering DepartmentShigehiko SUGIE
Senior Chief Engineer of Excavated Earth and Sand, Geotechnical Engineering DepartmentYuki YAMADA
Principal Engineer of Materials, Natural Environmental Engineering DepartmentToshihiko MIURA
